12322890 has 48 divisors (see below), whose sum is σ = 32221800. Its totient is φ = 3267456.

The previous prime is 12322889. The next prime is 12322907. The reversal of 12322890 is 9822321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8874441 + 3448449 = 2979^2 + 1857^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23956 + ... + 24464.

Almost surely, 2^12322890 is an apocalyptic number.

12322890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12322890 is an abundant number, since it is smaller than the sum of its proper divisors (19898910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12322890 is a wasteful number, since it uses less digits than its factorization.

12322890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12322890 is about 3510.3974133992. The cubic root of 12322890 is about 230.9781280242.

The spelling of 12322890 in words is "twelve million, three hundred twenty-two thousand, eight hundred ninety".